Ascending and descending order in HTML javascript?

Answer 1

You have the sort() method of Javascript arrays:
---
var a = [1,2,10,11];
a.sort(); // gives [1, 10, 11, 2]
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The default sort is lexicographic, sorting the values as strings.

For numbers and descending sort, you can pass in a function:
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function sortNum(a, b) {
return a - b;
}
function sortDesc(a, b) {
return b - a;
}
a.sort(sortNum); // gives [1, 2, 10, 11]
a.sort(sortDesc); // gives [11, 10, 2, 1]
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The function takes two arguments, and returns a negative number if the first element is smallest, a positive number if the first element is largest, and zero if they are equal.

See related link.